Question PSU exploded, but tested system to work with lower W psu. How to test if the GPU itself didnt burn?

[tchnct]

Title.

So yes, today my Silverstone 750w PSU decided to start new year with some fireworks show.

I changed the place of my pc to another desk, did put all the cables (power, monitors, kbm etc) and turned it on. It did turn all the LEDs on and fans did function but did monitors didnt receive any signal, so i restarted the system and boom, flash from the psu, burnt electric smell and the system shut down. and I immediately did tear the system apart and started checking for marks of damage.

Luckily, no visible signs of any kind of damage, so I decided to try to run it with my second PC PSU, and it did boot without issues.

Now the question is, can I somehow see if the gpu do work too, before I get new PSU? My other system PSU is 300W only, which I believe is not enough to power up a RTX 2070s.

System specs fyi;
i7-7700k
Asus prime z270
Hyperx predator 36gb 3400
RTX 2070s

 

[velocityg4]

Besides an obvious scorch mark. You won't know without installing a new PSU.

 

[Mr.Spock]

the PSU should be enough to fire up the PC if the RTX isn't doing anything intensive - would not leave it on very long.

 

[punkncat]

Do not try to power that graphics card on a 300 watt power supply.,

 

[tchnct]

the PSU should be enough to fire up the PC if the RTX isn't doing anything intensive - would not leave it on very long.

Fire up indeed, literally propably..

Do not try to power that graphics card on a 300 watt power supply.,

Exactly.

 

[tchnct]

Update to this. New PSU just arrived, and the damage was;

-RGB-Controller not working at all
-1 SSD dead
-1 HDD dead.

We got lucky this time.